<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
<h3 th:text="${msg}"></h3>
<form method="post" action="login">
   用户名: <input type="text" name="username"><br>
    密码:  <input type="password" name="userpwd"><br>
    <input type="submit" value="登录">
</form>
</body>
</html>